Linking Equilibrium and Nonequilibrium Dynamics in Glass-Forming Systems

John C. Mauro, Xiaoju Guo, Morten Mattrup Smedskjær

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Abstract

Understanding nonequilibrium glassy dynamics is of great scientific and technological importance. However, prediction of the temperature, thermal history, and composition dependence of nonequilibrium viscosity is challenging due to the noncrystalline and nonergodic nature of the glassy state. Here, we show that the nonequilibrium glassy dynamics are intimately connected with the equilibrium liquid dynamics. This is accomplished by deriving a new functional form for the thermal history dependence of nonequilibrium viscosity, which is validated against experimental measurements of industrial silicate glasses and computed viscosities for selenium over a wide range of conditions. Since the temperature and composition dependence of liquid viscosity can be predicted using temperature-dependent constraint theory, our work also opens the possibility to improve understanding of the physics of nonequilibrium viscosity.
Original languageEnglish
Publication date22 May 2016
Publication statusPublished - 22 May 2016
Event2016 Glass & Optical Materials Division Meeting - The Madison Concourse Hotel and the Governor's Club, Madison, United States
Duration: 22 Jun 201626 Jun 2016
http://ceramics.org/2016-glass-optical-materials-division-meeting-archive
http://ceramics.org/gomd2016-2

Conference

Conference2016 Glass & Optical Materials Division Meeting
LocationThe Madison Concourse Hotel and the Governor's Club
CountryUnited States
CityMadison
Period22/06/201626/06/2016
Internet address

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